CN209800159U - Flexible swing type air guide sleeve suitable for vertical axis wind turbine - Google Patents
Flexible swing type air guide sleeve suitable for vertical axis wind turbine Download PDFInfo
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- CN209800159U CN209800159U CN201920584469.2U CN201920584469U CN209800159U CN 209800159 U CN209800159 U CN 209800159U CN 201920584469 U CN201920584469 U CN 201920584469U CN 209800159 U CN209800159 U CN 209800159U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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Abstract
A flexible swing type air guide sleeve suitable for a vertical axis wind turbine comprises an upper support, a lower support, flexible blades and a blade fixing frame; the blade fixing frame is vertically arranged between the upper support and the lower support, the flexible blades are arranged on the blade fixing frame, the number of the flexible blades is 4-16, and the flexible blades are uniformly distributed in the circumferential direction; the flexible blade is in an isosceles trapezoid shape after being unfolded into a plane, and after the flexible blade is installed on the blade fixing frame, four angular points of the isosceles trapezoid flexible blade are located in the same vertical plane; the long bottom edge of the flexible blade in the shape of the isosceles trapezoid is a free end, and the short bottom edge of the flexible blade in the shape of the isosceles trapezoid is a fixed end; the installation angle range of a vertical plane where four angular points of the flexible blade in the shape of an isosceles trapezoid are positioned is +/-30 degrees; the proportional relation of the heights of the common perpendicular lines of the short bottom edge, the long bottom edge and the long and short bottom edges of the flexible blade in the shape of an isosceles trapezoid is as follows: the short bottom edge is the long bottom edge, and the height of the common perpendicular line of the long bottom edge and the short bottom edge is 1, (1.01-1.1) and (0.2-0.45).
Description
Technical Field
The utility model belongs to the technical field of wind power generation, especially, relate to a flexible oscillating kuppe suitable for vertical axis wind turbine.
Background
Wind energy, which is a clean energy source, accounts for a larger proportion of the traditional energy sources, and a vertical axis wind turbine is a wind power generation device with a wider application range.
At present, because a conventional vertical axis wind turbine has a resistance surface occupying half of a wind intercepting area, the wind energy utilization coefficient of the conventional vertical axis wind turbine is not high, and in order to solve the problem faced by the conventional vertical axis wind turbine, technicians usually add a fairing outside the wind turbine, and guide wind originally flowing to the resistance surface to the side generating power through the fairing, so that a certain wind gathering effect is achieved, and the efficiency of the wind turbine is increased.
The existing air guide sleeve is roughly divided into two types, the first type is the air guide sleeve which can swing along with the wind direction, the other type is a fixed cage type air guide sleeve, and the existing two types of air guide sleeves have certain defects.
The first type of pod requires a certain response time, requires an additional pod direction adjustment mechanism, and is difficult to be increased in size.
For the second type of air guide sleeve, the whole mass is heavier, and the leeward reactive side of the wind turbine at the center of the air guide sleeve still generates resistance, so the air guide effect is not ideal.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model provides a flexible oscillating kuppe suitable for vertical axis wind turbine has the quality light, can adapt to the full wind direction, need not additionally to dispose the characteristics that the kuppe transferred to the mechanism.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a flexible swing type air guide sleeve suitable for a vertical axis wind turbine comprises an upper support, a lower support, flexible blades and a blade fixing frame; the blade fixing frame is vertically arranged between the upper support and the lower support, the flexible blades are arranged on the blade fixing frame, the number of the flexible blades is a plurality, and the flexible blades are uniformly distributed in the circumferential direction; the flexible blade is in an isosceles trapezoid shape after being unfolded into a plane, and after the flexible blade is installed on the blade fixing frame, four angular points of the isosceles trapezoid flexible blade are located in the same vertical plane; the long bottom edge of the flexible blade in the shape of the isosceles trapezoid is a free end, and the short bottom edge of the flexible blade in the shape of the isosceles trapezoid is a fixed end.
The number of the flexible blades is 4-16.
The installation angle range of the vertical plane where the four corner points of the isosceles trapezoid flexible blade are located is +/-30 degrees.
The proportion relation of the heights of the short bottom edge, the long bottom edge and the long and short bottom edge common perpendicular lines of the flexible blades in an isosceles trapezoid is as follows: the short bottom edge is the long bottom edge, and the height of the common perpendicular line of the long bottom edge and the short bottom edge is 1, (1.01-1.1) and (0.2-0.45).
The utility model has the advantages that:
The utility model discloses a flexible oscillating kuppe suitable for vertical axis wind turbine has that the quality is light, can adapt to the full wind direction, need not additionally to dispose the characteristics that the kuppe turned to the mechanism.
Drawings
Fig. 1 is a schematic structural view of a flexible oscillating type air guide sleeve suitable for a vertical axis wind turbine according to the present invention;
fig. 2 is a diagram illustrating an operation state of the flexible swing type fairwater for a vertical axis wind turbine according to the present invention;
In the figure, 1-upper support, 2-lower support, 3-flexible blade, 4-blade fixing frame, 5-wind turbine.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a flexible swing type air guide sleeve suitable for a vertical axis wind turbine comprises an upper bracket 1, a lower bracket 2, a flexible blade 3 and a blade fixing frame 4; the blade fixing frame 4 is vertically arranged between the upper support 1 and the lower support 2, the flexible blades 3 are arranged on the blade fixing frame 4, the number of the flexible blades 3 is multiple, and the flexible blades 3 are uniformly distributed in the circumferential direction; the flexible blade 3 is in an isosceles trapezoid shape after being unfolded into a plane, and after the flexible blade 3 is installed on the blade fixing frame 4, four angular points of the isosceles trapezoid flexible blade 3 are located in the same vertical plane; the long bottom edge of the flexible blade 3 in the shape of an isosceles trapezoid is a free end, and the short bottom edge of the flexible blade 3 in the shape of an isosceles trapezoid is a fixed end.
The number of the flexible blades 3 is 9.
The installation angle range of the vertical plane where the four corner points of the isosceles trapezoid flexible blade 3 are located is 30 degrees.
The proportion relation of the heights of the short bottom edge, the long bottom edge and the long and short bottom edge common perpendicular lines of the flexible blades 3 in an isosceles trapezoid is as follows: the height of the common perpendicular line of the short bottom edge and the long bottom edge is 1:1.05: 0.25.
when traditional vertical axis wind turbine has adopted the utility model discloses a behind the flexible oscillating kuppe, and flexible blade 3 and wind turbine blade's the rotation keeps opposite state to install, as shown in fig. 2, after wind acts on the kuppe, can at first make the free end pendulum of the flexible blade 3 of windward side to centre of a circle side, can be with some wind direction power face that will pass through wind turbine resistance face this moment, windward side air intake area of flexible blade 3 is greater than leeward side air outlet area this moment, and then can produce the spray tube effect, make the wind speed obtain further enhancement, thereby wind turbine 5's efficiency also obtains further increase.
Meanwhile, the free end of the flexible blade 3 on the leeward side swings to the circumferential side, a large included angle and a small air outlet are formed between the flexible blade 3 and the wind turbine blade, and the reaction force of the airflow and the flexible blade 3 acts on the wind turbine 5 again, so that the forward torque of the wind turbine 5 is further enhanced, and the efficiency of the wind turbine 5 is improved.
The embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. A flexible oscillating spinner suitable for vertical axis wind turbines, characterized in that: comprises an upper bracket, a lower bracket, a flexible blade and a blade fixing frame; the blade fixing frame is vertically arranged between the upper support and the lower support, the flexible blades are arranged on the blade fixing frame, the number of the flexible blades is a plurality, and the flexible blades are uniformly distributed in the circumferential direction; the flexible blade is in an isosceles trapezoid shape after being unfolded into a plane, and after the flexible blade is installed on the blade fixing frame, four angular points of the isosceles trapezoid flexible blade are located in the same vertical plane; the long bottom edge of the flexible blade in the shape of the isosceles trapezoid is a free end, and the short bottom edge of the flexible blade in the shape of the isosceles trapezoid is a fixed end.
2. A flexible oscillating pod for vertical axis wind turbines as claimed in claim 1 wherein: the number of the flexible blades is 4-16.
3. A flexible oscillating pod for vertical axis wind turbines as claimed in claim 1 wherein: the installation angle range of the vertical plane where the four corner points of the isosceles trapezoid flexible blade are located is +/-30 degrees.
4. A flexible oscillating pod for vertical axis wind turbines as claimed in claim 1 wherein: the proportion relation of the heights of the short bottom edge, the long bottom edge and the long and short bottom edge common perpendicular lines of the flexible blades in an isosceles trapezoid is as follows: the short bottom edge is the long bottom edge, and the height of the common perpendicular line of the long bottom edge and the short bottom edge is 1, (1.01-1.1) and (0.2-0.45).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920584469.2U CN209800159U (en) | 2019-04-26 | 2019-04-26 | Flexible swing type air guide sleeve suitable for vertical axis wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920584469.2U CN209800159U (en) | 2019-04-26 | 2019-04-26 | Flexible swing type air guide sleeve suitable for vertical axis wind turbine |
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| Publication Number | Publication Date |
|---|---|
| CN209800159U true CN209800159U (en) | 2019-12-17 |
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| CN201920584469.2U Active CN209800159U (en) | 2019-04-26 | 2019-04-26 | Flexible swing type air guide sleeve suitable for vertical axis wind turbine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780475A (en) * | 2021-01-20 | 2021-05-11 | 西安交通大学 | S-shaped blade composite film blade double-shaft water turbine device |
| CN112855407A (en) * | 2021-01-20 | 2021-05-28 | 西安交通大学 | Double-shaft film oscillating water turbine |
| CN112855406A (en) * | 2021-01-20 | 2021-05-28 | 西安交通大学 | Lift-drag combined double-chain type water turbine |
| CN112879198A (en) * | 2021-01-20 | 2021-06-01 | 西安交通大学 | Flow guide type double-shaft film oscillating water turbine |
| CN109973295B (en) * | 2019-04-26 | 2023-11-28 | 东北大学 | Flexible swing type air guide sleeve applicable to vertical axis wind turbine |
-
2019
- 2019-04-26 CN CN201920584469.2U patent/CN209800159U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973295B (en) * | 2019-04-26 | 2023-11-28 | 东北大学 | Flexible swing type air guide sleeve applicable to vertical axis wind turbine |
| CN112780475A (en) * | 2021-01-20 | 2021-05-11 | 西安交通大学 | S-shaped blade composite film blade double-shaft water turbine device |
| CN112855407A (en) * | 2021-01-20 | 2021-05-28 | 西安交通大学 | Double-shaft film oscillating water turbine |
| CN112855406A (en) * | 2021-01-20 | 2021-05-28 | 西安交通大学 | Lift-drag combined double-chain type water turbine |
| CN112879198A (en) * | 2021-01-20 | 2021-06-01 | 西安交通大学 | Flow guide type double-shaft film oscillating water turbine |
| CN112879198B (en) * | 2021-01-20 | 2021-11-19 | 西安交通大学 | Flow guide type double-shaft film oscillating water turbine |
| CN112855406B (en) * | 2021-01-20 | 2022-02-01 | 西安交通大学 | Lift-drag combined double-chain type water turbine |
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